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Changes in the main climatic factors (air temperature and total precipitation) and their effect on the radial increment of Scots pine (Pinus sylvestris L.) over the period from 1933 to 2002 were studied in an insular pine forest growing in the steppe zone of the Southern Urals. Evidence for a significant increase in the amount of precipitation and air temperature in the second half of this period was obtained. Functions of response of radial increment indices to climatic parameters were analyzed. Relative contributions of air temperature and precipitation to variation in the radial increment of pine in different time intervals proved to differ in relation to climate changes during the past century. 相似文献
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P. S. Venediktov Yu. V. Kazimirko T. V. Krendeleva G. P. Kukarskikh V. V. Makarova S. I. Pogosyan O. V. Yakovleva A. B. Rubin 《Russian Journal of Ecology》2000,31(5):308-312
The relative yield of variable chlorophyll fluorescence in the bark of annual shoots of woody plants was measured with a portable
pulse-modulated fluorometer designed for this purpose at the Department of Biophysics (Biological Faculty, Moscow State University).
Experiments were performed to study the response of this parameter to external influences (treatment with an herbicide, water
loss, etc.). The results demonstrated the possibility of reliably recording the parameters of fluorescence in the annual shoots
of various woody plants without damaging these shoots. It is concluded that measurements of chlorophyll fluorescence in the
bark of woody plants can be used for analyzing changes in the physiological state of tree stands under the effects of natural
and anthropogenic factors. 相似文献
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Grigor’ev A. A. Devi N. M. Kukarskikh V. V. V’yukhin S. O. Galimova A. A. Moiseev P. A. Fomin V. V. 《Russian Journal of Ecology》2019,50(4):311-322
Russian Journal of Ecology - Analysis of the age structure of Dahurian larch (Larix gmelinii Rupr.) forests in the western part of the Putorana Plateau (Sukhie Gory Range) and comparison of... 相似文献
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